CN108918067A - A kind of bolt automatic tightening rotor-support-foundation system testing stand and its test method - Google Patents
A kind of bolt automatic tightening rotor-support-foundation system testing stand and its test method Download PDFInfo
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- CN108918067A CN108918067A CN201810743718.8A CN201810743718A CN108918067A CN 108918067 A CN108918067 A CN 108918067A CN 201810743718 A CN201810743718 A CN 201810743718A CN 108918067 A CN108918067 A CN 108918067A
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
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Abstract
The invention belongs to the researchs of aero-engine bolt-connection rotor-support-foundation system assembly technology and vibration test technology field, are related to a kind of bolt automatic tightening rotor-support-foundation system testing stand and its test method.The testing stand is mainly made of electrically driven and control system, bolt automatic screwing device, non-linear support-rotor-support-foundation system, test sensor-based system and pedestal.The present invention is by means of bolt automatic screwing device, it can be achieved that accurately controlling the pre-fastening moment applied to bolt and bolt corner；By sliding rail and it is main tighten the open slot in rifle fixing seat and be applicable to the bolts of different size ranges tighten.The present invention not only can the influence of inherent characteristic and different parameters to its inherent characteristic to bolt automatic tightening rotor-support-foundation system testing stand test, it may also be used for the test that analysis bolt pretightening, bolt tightening technique, bolt quantity, bolt model, bolt and screw hole gap and the parameters such as bearing type and bearing clearance influence nonlinear dynamics of rotor system characteristic and motion state.
Description
Technical field
The invention belongs to the researchs of aero-engine bolt-connection rotor-support-foundation system assembly technology and vibration test technology field, relate to
And a kind of bolt automatic tightening rotor-support-foundation system testing stand and its test method, it is a kind of analysis bearing parameter, bolt tightening technique
The testing stand that parameter, bolt arrangement parameter and combination parameter influence vibration of rotor system characteristic.
Background technique
Bolt connection structure is that each components are connected into integrally-built main connecting mode in engine rotor system, connection
Binding structure has great influence to the kinetic characteristics of aircraft engine rotor system.Bearing is common as aeroengine rotor
Support accessory, the relevant parameters such as type and radial internal clearance to nonlinear vibration of rotor systems characteristic have great influence.It passes
The spin dynamics research of system has ignored the dynamic effect of coupling structure mostly, by rotor-support-foundation system be considered one it is continuous whole
Body.In fact, the dynamics of the rotor-support-foundation system with coupling structure is different from continuous rotating, it is difficult to specifically describe some shakinesses
Relationship between fixed rotor dynamics (stiffness variation of axis, rotor balancing state slowly varying) and coupling structure.
Aero-engine coupling structure assembly performance and its stability are one of hot spots studied both at home and abroad at present.State at present
Interior research is focused primarily on the modeling of bolt connection part, and there are biggish gaps with aero-engine real work state.Connection
The initial stiffness of binding structure after mounting and stress all have it is difficult to predict uncertainty and technique correlation, in working condition
Its lower rigidity can also act on load with stress and constantly change, and show structural instability feature and apparent property macroscopically
It can degenerate, cause aircraft engine rotor system performance especially kinetic characteristics and ideal deterministic system characteristic to have larger
Difference.Influence of the different bolt tightening technique parameters to bolt flange coupling structure static characteristic has numerous studies, but is directed to
Bolt-connection parameter in bolt-hub coupling structure and technique in the rotating machineries such as aeroengine rotor etc. are to rotation
Turn the research in terms of equipment nonlinear dynamic characteristic and kinetic stability to be not mature enough.
Currently, rotor dynamics scholar related to Non-Linear Vibration field has recognized that bearing parameter, bolt both at home and abroad
Coupling structure parameter and assembly technology have carried out corresponding theoretical research, but still to the great influences of rotor dynamics
Without perfect theoretical system, therefore, rotor dynamics characteristic is influenced for aero-engine bolt connection structure parameter
Theoretical and experimental investigations be of great significance.To realize above target, a kind of analysis bearing parameter, bolt tightening technique are needed
The test that the combination parameter of parameter, bolt connection structure parameter and above-mentioned all parameters influences rotor nonlinear dynamic characteristic
Platform.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of bolt automatic tightening rotor-support-foundation system testing stand and its survey
Method for testing.In configuration aspects, the present invention is a kind of simplified mould of bolt-hub coupling structure in aircraft engine rotor system
Type, two ends of rotor can assemble different types of bearing.Bolt-hub coupling structure assists completing rotor centering by seam allowance, subtracts
The influence to system testing is misaligned less.Bolt-hub coupling structure disk outer is provided with the bolt hole of two rows of different-diameters,
The different bolt specifications of analysis, bolt can be achieved away from parameters such as axle center distance, bolt quantity to nonlinear dynamics of rotor system spy
The influence of property.By main rifle of tightening to bolt application screw-down torque, pair is tightened rifle limitation nut and is circumferentially rotated, and tightens rifle in conjunction with master
The torque sensor and rotary angle transmitter being internally integrated can realize that applying pre-fastening moment to bolt accurately controls.By sliding rail and
The open slot of fixing seat can realize that the position for tightening rifle is adjusted.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of bolt automatic tightening rotor-support-foundation system testing stand, mainly by electrically driven and control system A, bolt automatic tightening
Device B, non-linear support-rotor-support-foundation system C, test sensor-based system D and pedestal 20 form；
More foundation bolts are installed on the pedestal 20, for fixing motor support base 3, pair tighten firearm support 17, main
Tighten firearm support 12, bearing support 13 and current vortex sensor bracket 18；
The non-linear support-rotor-support-foundation system C, mainly by shaft, bolt-hub coupling structure 6, bearing support
13, bearing and bearing block a9 and bearing and bearing block b21 composition；
By two disks with edge to being combined into, disc centre is equipped with logical the bolt-hub coupling structure 6
Hole is matched with shaft, and the bolt hole of two rows of different-diameters is arranged on disk edge, is realized for bolt number, circumferential multiple rows of
Bolt-connection parameter, bolt are relative to the influence factor in the position in axle center, the diameter of bolt and bolt and screw hole gap to rotor system
The experimental study that kinetic characteristics of uniting influence；Bolt-hub coupling structure 6 carries out centering by internal seam allowance, guarantees left and right two
The concentricity of section rotor and bolt hole, bolt radial force caused by reduction misaligns, guarantees bolt-connection parameter correlation test
Accuracy；
The shaft totally two, one end is separately fixed at the centre bore of two disks of bolt-hub coupling structure 6
On, bolt-hub coupling structure 6 and shaft interference fit couples integral, and are connected by bolts guarantee coupling reliability, guarantor
The tightness degree for demonstrate,proving cooperation, prevents occurring safety problem in use process；The other end of shaft passes through bearing and bearing block respectively
Rotor is fixed on two bearing supports 13 by a9 and bearing and bearing block b21；Two bearing supports 13 are mounted on pedestal
On 20；One end of one of shaft is connected by flexible clutch 22 with the power output shaft of rotor-side variable frequency motor 2；
The bolt automatic screwing device B mainly tightens rifle clamp device a4 by pair, pair tightens rifle a5, master tightens rifle
7, it is main tighten rifle clamp device 8, sliding rail 10, it is main tighten rifle fixing seat 11, master tightens firearm support 12, pair tightens rifle fixing seat 14,
Pair tightens rifle clamp device b15, pair tightens rifle b16 and pair tightens the composition of firearm support 17；The pair tightens firearm support 17 totally two
It is a, it is mounted on pedestal 20, is located at the not ipsilateral of two bearing supports 13；The pair tightens the installation of rifle fixing seat 14
17 top of firearm support is tightened in pair, pair tightens rifle fixing seat 14 equipped with sliding rail 10, and pair tightens rifle clamp device a4 and pair is tightened
Rifle clamp device b15 is separately mounted to two pairs and tightens on the sliding rail 10 of rifle fixing seat 14；The pair tightens rifle a5 and pair is twisted
Tight rifle b16, is separately mounted to that pair tightens rifle clamp device a4 and pair is tightened on rifle clamp device b15, and pair is made to tighten rifle a5 and pair
It tightens rifle b16 to slide on sliding rail 10 along relative to shaft axial position, while pair tightens rifle clamp device a4 and pair tightens rifle
Clamp device b15 limitation pair tightens rifle a5 and pair tightens circumferentially rotating and moving axially for rifle b16；Bolt-hub coupling structure 6
Bolt is installed, pair tightens rifle a5 and pair is tightened rifle b16 and matched respectively with the bolt of corresponding position, uses in the bolt hole at edge
In circumferentially rotating for limitation bolt；
The master tightens firearm support 12 totally one, is mounted on pedestal 20, tightens rifle a5 with pair and is located at the same of shaft
Side makes master tighten rifle 7 and tightens rifle a5 mutual cooperation with pair；The master tighten rifle fixing seat 11 be connected by bolts be mounted on it is stubborn
The top of tight firearm support 12, the main bolt fastening position tightened in rifle fixing seat 11 are open slot, realize that master tightens rifle fixing seat
11 adjustment relative to shaft radial position；Main rifle fixing seat 11 of tightening is main to tighten the installation of rifle clamp device 8 equipped with sliding rail 10
On the main sliding rail 10 for tightening rifle fixing seat 11, the master, which tightens rifle 7 and is mounted on master, to be tightened on rifle clamp device 8, makes main twist
Tight rifle 7 slides on sliding rail 10 along relative to shaft axial position；It is main to tighten rifle 7 and pair to tighten rifle a5 coaxial and staggered relatively,
It is located at the two sides at bolt-hub coupling structure 6 edge；Master tightens rifle 7 and matches with the bolt of corresponding position, to bolt
Apply screw-down torque, realizes that master tightens rifle 7 and pair tightens movement of the rifle a5 simultaneously relative to shaft axial position；
The test sensor-based system D is mainly read by the vibration signal based on Labview platform development and storage is
System, data acquisition card, LMS vibration test system, torque sensor, rotary angle transmitter, acceleration transducer, current vortex sensor
19 and current vortex sensor bracket 18 form；Described is used to turn based on LabVIEW displacement sensor signal-obtaining and stocking system
The dynamic of subsystem is tested；The LMS vibration test system is intrinsic special for testing the vibration shape, intrinsic frequency of rotor-support-foundation system etc.
The test of property；The data acquisition card is acquired for acquiring data, is connected with current vortex sensor 19, and data are transported to
Computer；The torque sensor and rotary angle transmitter is mounted on master and tightens inside rifle 7, real-time monitoring torque and corner letter
It ceases and feeds back to and tighten gun controller, auxiliary is completed to tighten work；Master tightens rifle 7 and is tightening rifle motor, torque sensor, corner
Sensor tightens the accurate output that torque or corner are realized under gun controller collective effect；The acceleration transducer has more
It is a, it is pasted onto shaft and bolt-hub coupling structure 6；The current vortex sensor bracket 18 is П type structure, two sides
It is equipped with through-hole with top, for installing current vortex sensor 19；Current vortex sensor bracket 18 is mounted on pedestal 20, and close to spiral shell
Bolt-hub coupling structure 6, shaft are located in the gap among П type structure；
The electrically driven and control system A, mainly by electric control box 1, rotor-side variable frequency motor 2, tighten rifle motor
And gun controller composition is tightened, it tightens gun controller and is placed in electric control box 1, tighten rifle motor and be mounted on main tighten in rifle 7
Portion；The electric control box 1, including bolt automatic tightening rifle control system and electric machine control system, bolt automatic tightening rifle
Control system includes control panel, contactor and breaker, electric machine control system include control panel, frequency converter, contactor and
Breaker, frequency converter are used to control the open and close of motor for adjusting motor speed, contactor and breaker；Described turns
Sub- variable-frequency motor 2 is fixed on motor support base 3, and motor support base 3 is mounted on pedestal 20, and rotor-side variable frequency motor 2 transmits torque
To shaft.
A kind of test method of bolt automatic tightening rotor-support-foundation system has bolt-hub coupling structure rotor for testing
The inherent characteristic and dynamic characteristic of system, it is specific as follows：
1), bolt-hub coupling structure rotor-support-foundation system inherent characteristic test
It is established in LMS vibration test system and has bolt-hub coupling structure rotor-support-foundation system model, and multiple groups are added
Velocity sensor is adsorbed in shaft and bolt-hub coupling structure, is hammered point-by-point percussion into shape using exciting force, is passed through LMS and vibrate survey
Test system carries out data acquisition and processing (DAP), finally obtains the inherent characteristic test result of rotor-support-foundation system, including the vibration shape and intrinsic frequency
Rate；
Change bolt pretightening, bolt tightening technique, bolt quantity, bolt model, spiral shell by bolt automatic screwing device
It is solid to rotor-support-foundation system to study each parameter and various combination parameter for the parameter of bolt and screw hole gap and bearing type and bearing clearance
Individual affecting laws；
2), bolt-hub coupling structure Rotor System Dynamic Characteristics test
By current vortex sensor bracket close to the installation of hub-bolt connection structure, two groups of current vortex sensors close to shaft,
Motor speed is adjusted by frequency converter, vibration signals collecting and stocking system based on Labview read in real time and store electricity
The displacement data that eddy current sensor measures, measured displacements signal obtain after processing time-domain curve based on measured signal, frequency spectrum,
Orbit of shaft center and Poincaré map figure analyze the motion state and frequency information of rotor-support-foundation system at this time；
Change bolt pretightening, bolt tightening technique, bolt quantity, bolt model, spiral shell by bolt automatic screwing device
The parameter of bolt and screw hole gap and bearing type and bearing clearance repeats experimental test process, studies each parameter and different groups
Parameter is closed to the affecting laws of rotor-support-foundation system dynamic vibration characteristics.
The present invention, which is essentially consisted in, changes bolt pretightening, bolt tightening technique, Number of Bolts by bolt automatic screwing device
Amount, bolt model, bolt and screw hole gap and the parameters such as bearing type and bearing clearance, can study above-mentioned each parameter and difference
Affecting laws of the combination parameter to rotor-support-foundation system inherent characteristic, dynamic characteristic and kinetic stability.
Beneficial effects of the present invention：
The present invention is by means of bolt automatic screwing device, it can be achieved that accurately controlling the pre-fastening moment and bolt applied to bolt
Corner；By sliding rail and it is main tighten the open slot in rifle fixing seat and be applicable to the bolts of different size ranges tighten；It can be wide
The general combination for considering bolt connection structure parameter, bolt tightening technique parameter and bearing relevant parameter and above-mentioned parameter turns to entire
The influence of subsystem inherent characteristic and dynamic characteristic.
The present invention not only can be to the bolt automatic tightening rotor-support-foundation system testing stand inherent characteristic and different parameters to it
The influence of inherent characteristic is tested, it may also be used for analysis bolt pretightening, bolt tightening technique, bolt quantity, bolt model,
Bolt and screw hole gap and the parameters such as bearing type and bearing clearance are to nonlinear dynamics of rotor system characteristic and motion state
The test of influence.
Detailed description of the invention
Fig. 1 is that the system of experimental bench of the present invention forms；
Fig. 2 is bolt automatic tightening rotor experiment table system structure diagram of the invention；
Fig. 3 is non-linear bearing-rotor-support-foundation system schematic diagram of the invention；
Fig. 4 (a) is bolt of the invention-hub coupling structure schematic diagram a；
Fig. 4 (b) is bolt of the invention-hub coupling structure schematic diagram b；
Fig. 5 is current vortex sensor of the invention and current vortex sensor support schematic diagram；
Fig. 6 is that pair of the invention tightens rifle and its clamp device schematic diagram；
Fig. 7 is that master of the invention tightens rifle and its clamp device schematic diagram；
Fig. 8 (a) tightens firearm support schematic diagram for of the invention；
Fig. 8 (b) is bearing support schematic diagram of the invention；
Fig. 9 tightens rifle fixing seat schematic diagram for of the invention；
Figure 10 is flexible clutch structural schematic diagram of the invention.
In figure：A is electrically driven and control system；B bolt automatic screwing device；C non-linear support-rotor-support-foundation system；D test
Sensor-based system；1 electric control box；2 rotor-side variable frequency motors；3 motor support bases；4 pairs tighten rifle clamp device a；5 pairs tighten rifle a；6
Bolt-hub coupling structure；7 masters tighten rifle；8 masters tighten rifle clamp device；9 bearings and bearing block a；10 sliding rails；11 masters tighten
Rifle fixing seat；12 masters tighten firearm support；13 bearing supports；14 pairs tighten rifle fixing seat；15 pairs tighten rifle clamp device b；16
Pair tightens rifle b；17 pairs tighten firearm support；18 current vortex sensor brackets；19 current vortex sensors；20 pedestals；21 bearings and axis
Hold a b；22 flexible clutch.
Specific embodiment
With reference to the accompanying drawing and technical solution, a specific embodiment of the invention is further illustrated.
As shown in Figure 1, 2, a kind of bolt automatic tightening rotor-support-foundation system testing stand, mainly by electrically driven and control system A,
Bolt automatic screwing device B, non-linear support-rotor-support-foundation system C, test sensor-based system D and pedestal 20 form；
The pedestal 20 is equipped with more foundation bolts, and for fixing motor support base 3, pair tightens firearm support 17, master twists
Tight firearm support 12, bearing support 13 and current vortex sensor bracket 18；
As shown in figure 3, the non-linear bearing-rotor-support-foundation system C includes bolt-hub structure 6, rotor-support-foundation system both ends are logical
It crosses bearing and bearing block a9 and bearing and rotor is fixed on bearing support 13 by bearing block b21；Bolt-hub structure 6
Shown in structure such as Fig. 4 (a) and 4 (b)；
The bolt automatic screwing device includes that master tightens rifle 7, is fixed on master and tightens rifle clamp device 8, passes through sliding rail
10, which tighten rifle fixing seat 11 with master, is linked to be an entirety, and is connected by bolts to be fixed on to lead and tightens firearm support 12.Pair tightens rifle
A5 and pair tighten rifle b16 and are individually fixed in that pair tightens rifle clamp device a4 and pair is tightened on rifle clamp device b15, pass through sliding rail 10
And pair tightens rifle fixing seat 14 and is connected into an entirety, and is connected by bolts and is fixed on pair and tightens on firearm support 17；
Pair tightens rifle a5 and the secondary structure for tightening rifle clamp device a4 is as shown in Figure 6；Master tightens rifle 7 and main rifle of tightening fastens
The structure of device 8 is as shown in Figure 7；Main firearm support 12 of tightening is as shown in Fig. 8 (a)；Bearing support 13 is such as shown in Fig. 8 (b)；It is main to twist
Tight rifle fixing seat 11 is as shown in Figure 9.
Electrically driven, the control system includes electric control box 1, rotor-side variable frequency motor 2, tightens rifle motor and tighten
Gun controller is tightened gun controller and is placed in electric control box 1.Rotor-side variable frequency motor 2, which is connected by bolts, is fixed on motor branch
Seat 3, and be connected by flexible clutch 22 with shaft, transmit torque.It tightens rifle motor and is placed in main tighten inside rifle 7；Flexibility connection
The structure of axis device 22 is as shown in Figure 10.
The test sensor-based system includes that the vibration signal based on Labview platform development is read and stocking system, letter
Number capture card, LMS vibration test system, torque sensor, rotary angle transmitter, acceleration transducer current vortex sensor 19 and electricity
Eddy current sensor bracket 18.The torque sensor and rotary angle transmitter be placed in master tighten inside rifle 7, real-time monitoring torque and
Corner information simultaneously feeds back to and tightens gun controller, and auxiliary is completed to tighten work.Current vortex sensor 19 and current vortex sensor branch
Frame 18 is as shown in Figure 5.
Carry out static state, the dynamic characteristic test that system is carried out after early-stage preparations, a kind of bolt automatic tightening rotor-support-foundation system
Test method, it is specific as follows for testing bolt-hub coupling structure rotor-support-foundation system inherent characteristic and dynamic characteristic：
1), bolt-hub coupling structure rotor-support-foundation system inherent characteristic test
It is established in LMS vibration test system and has bolt-hub coupling structure rotor-support-foundation system model, and multiple groups are added
Velocity sensor is adsorbed in shaft and bolt-hub coupling structure 6, is hammered point-by-point percussion into shape using exciting force, is passed through LMS and vibrate survey
Test system carries out data acquisition and processing (DAP), finally obtains the inherent characteristic test result of rotor-support-foundation system, including the vibration shape and intrinsic frequency
Rate；
Change bolt pretightening, bolt tightening technique, bolt quantity, bolt model, spiral shell by bolt automatic screwing device
It is solid to rotor-support-foundation system to study each parameter and various combination parameter for the parameter of bolt and screw hole gap and bearing type and bearing clearance
Individual affecting laws；
2), bolt-hub coupling structure Rotor System Dynamic Characteristics test
Current vortex sensor bracket 18 is installed close to hub-bolt connection structure 6, two groups of current vortex sensors 19 are close
Shaft adjusts motor speed by frequency converter, is read and stored up in real time with stocking system based on the vibration signals collecting of Labview
Deposit the displacement data that current vortex sensor measures, measured displacements signal obtain after processing time-domain curve based on measured signal,
Frequency spectrum, orbit of shaft center and Poincaré map figure analyze the motion state and frequency information of rotor-support-foundation system at this time；
Change bolt pretightening, bolt tightening technique, bolt quantity, bolt model, spiral shell by bolt automatic screwing device
The parameter of bolt and screw hole gap and bearing type and bearing clearance repeats experimental test process, studies each parameter and different groups
Parameter is closed to the affecting laws of rotor-support-foundation system dynamic vibration characteristics.
Research bolt flange is essentially consisted in based on the above test method present invention to be connected under different connection parameters and not
With the variation of support pattern lower rotor part characteristic, various working achieved by the present invention set forth below：
The variation of main experimental operating condition is：Change bolt and tighten sequence, at present widely applied bolt flange connection in engineering
Connecing structural bolts and tightening sequentially mainly has sequence tightening way, diagonal tightening way and sequence tightening way to combine the diagonal side of tightening
The combination tightening way of formula, the torque of joint bolt automatic screwing device and accurately controlling for corner can study existing difference and tighten
The influence of mode and pre-fastening moment size to rotor-support-foundation system inherent characteristic and dynamic characteristic；As shown in figure 4,6 mid-game of hub structure
There is the bolt hole of two rows of different-diameters in outer, by tightened shown in Fig. 9 rifle fixing seat 11 open slot change tighten rifle relative to
The displacement of shaft radial direction can study bolt away from axle center distance, the diameter of bolt, bolt and screw hole gap, multiple rows of bolt combination
Influence of the combination parameter of connection and above-mentioned parameter to rotor-support-foundation system inherent characteristic and dynamic characteristic；Replacement different type bearing,
Change bearing pre-tightened mode can study bearing radial gap and bearing structure parameter to rotor-support-foundation system inherent characteristic and dynamic characteristic
Influence；
Changing above-mentioned change bolt pretightening, bolt tightens sequence, between bolt quantity, bolt model, bolt and screw hole
Gap on the basis of bolt is away from axle center distance, changes bearing type and changes bearing end-play by different bearing pre-tightened degree,
It can further study under different bearing parameters, the combination of bolt assembly technology parameter, structural parameters and above-mentioned whole parameter is to turning
The influence of subsystem inherent characteristic and dynamic characteristic.
Claims (2)
1. a kind of bolt automatic tightening rotor-support-foundation system testing stand, which is characterized in that the testing stand mainly by electrically driven and
Control system (A), bolt automatic screwing device (B), non-linear support-rotor-support-foundation system (C), test sensor-based system (D) and pedestal
(20) it forms；
More foundation bolts are installed on the pedestal (20), for fixing motor support base (3), pair tighten firearm support (17),
Master tightens firearm support (12), bearing support (13) and current vortex sensor bracket (18)；
Non-linear support-the rotor-support-foundation system (C), mainly by shaft, bolt-hub coupling structure (6), bearing support
(13), bearing and bearing block a (9) and bearing and bearing block b (21) composition；
For the bolt-hub coupling structure (6) by two disks with edge to being combined into, disc centre is equipped with through-hole,
It is matched with shaft, the bolt hole of two rows of different-diameters is set on disk edge, realized for bolt number, circumferential multiple rows of bolt
It is dynamic to rotor-support-foundation system relative to the influence factor in the position in axle center, the diameter of bolt and bolt and screw hole gap to couple parameter, bolt
The experimental study that mechanical characteristic influences；Bolt-hub coupling structure (6) carries out centering by internal seam allowance, guarantees two sections of left and right
The concentricity of rotor and bolt hole, bolt radial force caused by reduction misaligns, guarantees bolt-connection parameter correlation test
Accuracy；
The shaft totally two, one end is separately fixed on the centre bore of two disks of bolt-hub coupling structure (6),
Bolt-hub coupling structure (6) and shaft interference fit couples integral, and are connected by bolts guarantee coupling reliability, guarantor
The tightness degree for demonstrate,proving cooperation, prevents occurring safety problem in use process；The other end of shaft passes through bearing and bearing block a respectively
(9) rotor is fixed on two bearing supports (13) with bearing and bearing block b (21)；Two bearing support (13) installations
On pedestal (20)；One end of one of shaft passes through the power output of flexible clutch (22) and rotor-side variable frequency motor (2)
Axis is connected；
The bolt automatic screwing device (B) mainly tightens rifle clamp device a (4) by pair, pair tightens rifle a (5), master tightens
Rifle (7) main tighten rifle clamp device (8), sliding rail (10), main tightens that rifle fixing seat (11), master tightens firearm support (12), pair is tightened
Rifle fixing seat (14), pair tighten rifle clamp device b (15), pair tightens rifle b (16) and pair tightens firearm support (17) composition；Described
Pair tightens firearm support (17) totally two, is mounted on pedestal (20), is located at the not ipsilateral of two bearing supports (13)；Institute
The pair stated, which tightens rifle fixing seat (14) and is mounted on pair, tightens at the top of firearm support (17), and pair tightens rifle fixing seat (14) equipped with sliding rail
(10), pair tightens rifle clamp device a (4) and pair tightens rifle clamp device b (15) and is separately mounted to two pairs and tightens rifle fixing seat
(14) on sliding rail (10)；The pair tightens rifle a (5) and pair tightens rifle b (16), is separately mounted to pair and tightens rifle clamp device
A (4) and pair are tightened on rifle clamp device b (15), make that pair tightens rifle a (5) and pair tightens rifle b (16) on sliding rail (10) along opposite
It is slided in shaft axial position, while pair tightens rifle clamp device a (4) and pair is tightened rifle clamp device b (15) limitation pair and tightened
Rifle a (5) and pair tighten circumferentially rotating and moving axially for rifle b (16)；In bolt-hub coupling structure (6) edge bolt hole
Bolt is installed, pair tightens rifle a (5) and pair is tightened rifle b (16) and matched respectively with the bolt of corresponding position, for limiting bolt
Circumferentially rotate；
The master tightens firearm support (12) totally one, is mounted on pedestal (20), tightens rifle a (5) with pair and is located at the same of shaft
Side makes master tighten rifle (7) and tightens rifle a (5) mutual cooperation with pair；The master tightens rifle fixing seat (11) and is connected by bolts
It is mounted on the top for tightening firearm support (12), the main bolt fastening position tightened on rifle fixing seat (11) is open slot, realizes master
Tighten adjustment of the rifle fixing seat (11) relative to shaft radial position；Main tighten rifle fixing seat (11) are main equipped with sliding rail (10)
It tightens rifle clamp device (8) to be mounted on the main sliding rail (10) for tightening rifle fixing seat (11), the master tightens rifle (7) and is mounted on
Master tightens on rifle clamp device (8), slides main rifle (7) of tightening on sliding rail (10) along relative to shaft axial position；It is main to twist
Tight rifle (7) tightens that rifle a (5) is coaxial and staggered relatively with pair, is located at the two sides at bolt-hub coupling structure (6) edge；
Master tightens rifle (7) and matches with the bolt of corresponding position, applies screw-down torque to bolt, realizes that master tightens rifle (7) and tightens with pair
Rifle a (5) movement relative to shaft axial position simultaneously；
The test sensor-based system (D), mainly by based on Labview platform development vibration signal read and stocking system,
Data acquisition card, LMS vibration test system, torque sensor, rotary angle transmitter, acceleration transducer, current vortex sensor
(19) it is formed with current vortex sensor bracket (18)；Described is used based on LabVIEW displacement sensor signal-obtaining and stocking system
It is tested in the dynamic of rotor-support-foundation system；The LMS vibration test system is used to testing the vibration shape of rotor-support-foundation system, intrinsic frequency is consolidated
Individual test；The data acquisition card is acquired for acquiring data, is connected with current vortex sensor (19), and by data
It is transported to computer；The torque sensor and rotary angle transmitter is mounted on master and tightens rifle (7) inside, real-time monitoring torque
And corner information and feed back to and tighten gun controller, auxiliary is completed to tighten work；Master tightens rifle (7) and is tightening rifle motor, torque
Sensor, tightens the accurate output that torque or corner are realized under gun controller collective effect at rotary angle transmitter；The acceleration
Sensor has multiple, is pasted onto shaft and bolt-hub coupling structure (6)；The current vortex sensor bracket (18) is
П type structure, two sides and top are equipped with through-hole, for installing current vortex sensor (19)；Current vortex sensor bracket (18) peace
Mounted in pedestal (20), and close to bolt-hub coupling structure (6), shaft is located in the gap among П type structure；
The electrically driven and control system (A), mainly by electric control box (1), rotor-side variable frequency motor (2), tighten rifle electricity
Machine and tighten gun controller composition, tighten gun controller and be placed in electric control box (1), tighten rifle motor be mounted on master tighten rifle
(7) internal；The electric control box (1), including bolt automatic tightening rifle control system and electric machine control system, bolt it is automatic
Tightening rifle control system includes control panel, contactor and breaker, and electric machine control system includes control panel, frequency converter, connects
Tentaculum and breaker, frequency converter are used to control the open and close of motor for adjusting motor speed, contactor and breaker；Institute
The rotor-side variable frequency motor (2) stated is fixed on motor support base (3), and motor support base (3) is mounted on pedestal (20), rotor-side variable frequency electricity
Machine (2) delivers torque to shaft.
2. using a kind of test method of bolt automatic tightening rotor-support-foundation system testing stand described in claim 1, which is characterized in that
It is specific as follows：
It is established in LMS vibration test system and has bolt-hub coupling structure rotor-support-foundation system model, and by multiple groups acceleration
Sensor is adsorbed in shaft and bolt-hub coupling structure, is hammered point-by-point percussion into shape using exciting force, is passed through LMS vibration-testing system
System carries out data acquisition and processing (DAP), finally obtains the inherent characteristic test result of rotor-support-foundation system, including the vibration shape and intrinsic frequency；
By bolt automatic screwing device change bolt pretightening, bolt tightening technique, bolt quantity, bolt model, bolt and
The parameter of screw hole gap and bearing type and bearing clearance, studies each parameter and various combination parameter is inherently special to rotor-support-foundation system
The affecting laws of property；
2), bolt-hub coupling structure Rotor System Dynamic Characteristics test
By current vortex sensor bracket close to hub-bolt connection structure installation, two groups of current vortex sensors pass through close to shaft
Frequency converter adjusts motor speed, and vibration signals collecting and stocking system based on Labview read in real time and store current vortex
The displacement data that sensor measures, measured displacements signal obtain time-domain curve, frequency spectrum, axle center based on measured signal after processing
Track and Poincaré map figure analyze the motion state and frequency information of rotor-support-foundation system at this time；
By bolt automatic screwing device change bolt pretightening, bolt tightening technique, bolt quantity, bolt model, bolt and
The parameter of screw hole gap and bearing type and bearing clearance repeats experimental test process, studies each parameter and various combination ginseng
The affecting laws of several pairs of rotor-support-foundation system dynamic vibration characteristics.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081072A (en) * | 2019-04-26 | 2019-08-02 | 江苏万达特种轴承有限公司 | Thin-wall bearing and its processing technology |
| CN115901067A (en) * | 2022-11-28 | 2023-04-04 | 广州松兴电气股份有限公司 | Brake disc bolt automatic detection platform and detection method |
| CN116519314A (en) * | 2023-06-25 | 2023-08-01 | 西北工业大学 | Engine rotor over-rotation test tool and assembly method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110100773A1 (en) * | 2009-10-30 | 2011-05-05 | Hitachi Chemical Company, Ltd. | Disc brake |
| CN103712797A (en) * | 2013-12-12 | 2014-04-09 | 清华大学 | Experimental device for simulating bolt-connected disk-and-drum rotor of aero-engine |
| CN103759934A (en) * | 2014-01-26 | 2014-04-30 | 清华大学 | Birotor fault simulation experiment device |
| CN207585912U (en) * | 2017-10-20 | 2018-07-06 | 华东交通大学 | It is a kind of simple type rotor, bearing fault simulation test bed |
-
2018
- 2018-07-09 CN CN201810743718.8A patent/CN108918067B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110100773A1 (en) * | 2009-10-30 | 2011-05-05 | Hitachi Chemical Company, Ltd. | Disc brake |
| CN103712797A (en) * | 2013-12-12 | 2014-04-09 | 清华大学 | Experimental device for simulating bolt-connected disk-and-drum rotor of aero-engine |
| CN103759934A (en) * | 2014-01-26 | 2014-04-30 | 清华大学 | Birotor fault simulation experiment device |
| CN207585912U (en) * | 2017-10-20 | 2018-07-06 | 华东交通大学 | It is a kind of simple type rotor, bearing fault simulation test bed |
Non-Patent Citations (3)
| Title |
|---|
| Z Y QIN 等: "Analytical model of bolted disk-drum joints and its application to dynamic analysis of jointed rotor", 《JOURNAL OF MECHANICAL ENGINEERING SCIENCE》 * |
| 刘卓乾 等: "含螺栓连接转子系统非线性振动特性研究", 《振动与冲击》 * |
| 魏企业 等: "航空发动机转子装配螺栓自动拧紧机设计与分析", 《机械》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081072A (en) * | 2019-04-26 | 2019-08-02 | 江苏万达特种轴承有限公司 | Thin-wall bearing and its processing technology |
| CN115901067A (en) * | 2022-11-28 | 2023-04-04 | 广州松兴电气股份有限公司 | Brake disc bolt automatic detection platform and detection method |
| CN116519314A (en) * | 2023-06-25 | 2023-08-01 | 西北工业大学 | Engine rotor over-rotation test tool and assembly method |
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|---|---|
| CN108918067B (en) | 2019-08-23 |
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